body{
    background:no-repeat #20d1bc;
    background-size: 100%;
}
.dangJian{
    width: 100%;
    height: auto;
    overflow: hidden;
    margin-top: 3.5rem;
}
.dangJian_box{
    width: 90%;
    height: auto;
    overflow: hidden;
    margin: 0 auto;
}
.dangJian_box li{
    float: left;
    font-size: 0.3rem;
    margin-right: 3%;
    margin-top: 10px;
}
.dangJian_box li:nth-child(3){
    margin-right: 0;
}
.dangJian_box li:nth-child(6){
    margin-right: 0;
}
.dangJian_box li a{
    display: inline-block;
    background: #fff;
    color:#d11921 ;
    padding: 0.5rem 0.45rem;
    border-radius: 3px;
}